stable kernel of mar 7
but this has been happening for many months
# kgdb kernel.debug /usr/home/crash/vmcore.1
[GDB will not be able to debug user-mode threads: /usr/lib/libthread_db.so:
Undefined symbol "ps_pglobal_lookup"]
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doadump () at pcpu.h:159
(kgdb) bt
#0 doadump () at pcpu.h:159
#1 0xc04c2b06 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:410
#2 0xc04c2ef4 in panic (fmt=0xc061752a "%s")
at /usr/src/sys/kern/kern_shutdown.c:566
#3 0xc0600bbc in trap_fatal (frame=0xe76ba934, eva=0)
at /usr/src/sys/i386/i386/trap.c:809
#4 0xc0600872 in trap_pfault (frame=0xe76ba934, usermode=0, eva=1100323877)
at /usr/src/sys/i386/i386/trap.c:727
#5 0xc060041f in trap (frame {tf_fs = -412418024, tf_es = -1068826608,
tf_ds = -412418032, tf_edi = -1022922224, tf_esi = 1105719541, tf_ebp =
-412374640, tf_isp = -412374688, tf_ebx = -1030244236, tf_edx = 1100323873,
tf_ecx = -1067068460, tf_eax = 0, tf_trapno = 12, tf_err = 2, tf_eip =
-1068575206, tf_cs = 8, tf_eflags = 66054, tf_esp = -1030244352, tf_ss =
-412374656}) at /usr/src/sys/i386/i386/trap.c:417
#6 0xc05eb51a in calltrap () at /usr/src/sys/i386/i386/exception.s:140
#7 0xe76b0018 in ?? ()
#8 0xc04b0010 in ktr_writerequest (req=0x0) at atomic.h:365
#9 0xc04ed528 in selwakeuppri (sip=0x0, pri=0)
at /usr/src/sys/kern/sys_generic.c:1058
#10 0xc04fd0cc in ttwakeup (tp=0xc04e7e45) at /usr/src/sys/kern/tty.c:2366
#11 0xc04fb99d in ttymodem (tp=0xc297b800, flag=0)
at /usr/src/sys/kern/tty.c:1625
#12 0xc0500547 in ptcopen (dev=0xc2669a00, flag=3, devtype=8192, td=0x0)
---Type <return> to continue, or q <return> to quit---
at linedisc.h:136
#13 0xc047637a in spec_open (ap=0xe76baa6c)
at /usr/src/sys/fs/specfs/spec_vnops.c:207
#14 0xc0476028 in spec_vnoperate (ap=0x0)
at /usr/src/sys/fs/specfs/spec_vnops.c:118
#15 0xc053a07e in vn_open_cred (ndp=0xe76babd8, flagp=0xe76bacd8, cmode=0,
cred=0xc283f980, fdidx=0) at vnode_if.h:228
#16 0xc0539c13 in vn_open (ndp=0x0, flagp=0x0, cmode=0, fdidx=0)
at /usr/src/sys/kern/vfs_vnops.c:91
#17 0xc0532563 in kern_open (td=0xc2a39190, path=0x0, pathseg=UIO_USERSPACE,
flags=3, mode=0) at /usr/src/sys/kern/vfs_syscalls.c:957
#18 0xc0532440 in open (td=0x0, uap=0x0)
at /usr/src/sys/kern/vfs_syscalls.c:926
#19 0xc0600f90 in syscall (frame {tf_fs = 47, tf_es = 47, tf_ds = 47,
tf_edi = -1077942944, tf_esi = 134686612, tf_ebp = -1077943064, tf_isp =
-412373644, tf_ebx = 671991264, tf_edx = 671984052, tf_ecx = 674242700, tf_eax =
5, tf_trapno = 12, tf_err = 2, tf_eip = 673698767, tf_cs = 31, tf_eflags = 518,
tf_esp = -1077943156, tf_ss = 47})
at /usr/src/sys/i386/i386/trap.c:1001
#20 0xc05eb56f in Xint0x80_syscall () at /usr/src/sys/i386/i386/exception.s:201
#21 0x0000002f in ?? ()
#22 0x0000002f in ?? ()
#23 0x0000002f in ?? ()
---Type <return> to continue, or q <return> to quit---
#24 0xbfbfe560 in ?? ()
#25 0x08072794 in ?? ()
#26 0xbfbfe4e8 in ?? ()
#27 0xe76bad74 in ?? ()
#28 0x280dc5e0 in ?? ()
#29 0x280da9b4 in ?? ()
#30 0x2830208c in ?? ()
#31 0x00000005 in ?? ()
#32 0x0000000c in ?? ()
#33 0x00000002 in ?? ()
#34 0x2827d3cf in ?? ()
#35 0x0000001f in ?? ()
#36 0x00000206 in ?? ()
#37 0xbfbfe48c in ?? ()
#38 0x0000002f in ?? ()
#39 0x00000000 in ?? ()
#40 0x00000000 in ?? ()
#41 0x00000000 in ?? ()
#42 0x00000000 in ?? ()
#43 0x2bb48000 in ?? ()
#44 0xc406a000 in ?? ()
#45 0xc2a39190 in ?? ()
#46 0xe76baaf8 in ?? ()
---Type <return> to continue, or q <return> to quit---
#47 0xe76baadc in ?? ()
#48 0xc1e7f640 in ?? ()
#49 0xc04d7320 in sched_switch (td=0x8072794, newtd=0x280dc5e0, flags=Cannot
access memory at address 0xbfbfe4f8
)
at /usr/src/sys/kern/sched_4bsd.c:881
Previous frame inner to this frame (corrupt stack?)